Player-piano.



c. v. JAMESON. PLAYER PIANO.

APPLlCATlON FIL'ED MAY 24, 1912.

1 ,137,404. Patented Ap1f27, 1915.'

3 SHEETS-SHEET 1.

www@ C. V. JAMESON.

PLAYER PIANO.

APPLICATION FILED MAY 24. 1912.

Patented Apr. 27, 1915.

.3 SHEETS-SHEET 2.

Z'O l l@ N Cl V. JAMESON.

PLAYER PIANO. APPLICATION FILED MAY 24. 1912.

I 1,137,404. I Patented Apr. 27, 1915.

l 3 SHEETS-SHEET 3.

entre sTATas- PATENT or ICE.

CHARLES V. J'VIESON, 0F CHICAGO, ILLINOIS, ASSIGNOR OiF ONE-EIGrH'lH TO HENRY Ef WEISERT, ONE-EIGHTH T0 ARTHUR` BISSELI AND THREE-EIGHTHS TO JAMES 'cURTIss ALI. or CHICAGO, ILLINOIS.

. PLAYERFPIANO.

T0 all 107mm it may concern. v

Be it known that L CHARLES l. JAMESON,

`a. citizen of the United States .of America,

in operating position.; Fig. 2 is a Ytransverse section on line 2-2 of Fig. 1; Fig. 3 is a similar section 'with the devices in their lower position; Fig. #i is a. plan o'the devices shown at the right of Fig. 1; Fig. 5 is a section on line 5-Ti of Fig. ai; Fig. G-is a perspective view of the locking devices for the drive shaft.

Supported ena shelf P1 in the piano cas ing P, are bracketsrlO, the upper ends of which are located behind the lower part of the front panel P2. Fivoted at l10n the upper ends of the brackets 10 are arms 12 which support the tracker bar 13, the receiving roll 14., and the pins 15 Ifor holding .the roll of perforated paper. The arms 12 are ot' peculiar shape necessari' in fitting them to the position in which `theyare located behind the tall board F. @ne part 1G ot the arms 12 is hook shaped to clear the lower edge of the panel F2.

Secured in a fixed position to the arm 12 at the right hand is a bar 17 which is held.

far enough `from thc arm 12 to provide several inches of space. In this space are supported clutch and rewind mechanisms which are of a well known character and need not be described.

Pivoted to the. arm 12 on the le the bar 17 on the right, are linxsr have their other ends pivoted te secured to the shatt 20.

ft and. to .8 which arms 19 On the end of the .shaft 20 is a small gear 21 which meshes with a larger gear 22, and engaging the gear 22 is a rack 23 supported in guides 24 on the piano casing P. Pivoted at 25 on the casing P is a hand lever 26, and connected be- Specifcation of Letters Patent.

vfeed is driven from the motor B free to drive the meent-.ea apier, rara.

Application filed May 24, 1912. .-Serial No. 699,361.

tween pins on this lever and on the rack 23 is a 'link 27. The connections are such that when thehand lever 2G 1s moved on its pivot 25 Ythe rack is moved in its guidesfto turn the vgears 22 and 21. The extreme positions of these parts are shown in full and dotted lines in Fig. 4'. Turning the gear 21 turns the shaft 20 and moves the arms 19 between the positions shown in Fig. 2.and Fig. 3.

As the arms 19 are connected through links 18 to the arms 12, the rotation of the shaft 2O serves to raise or lower the tracker bar and its associated parts.

in their lower position the tracker bar and its associated parts are concealed within the vpiano behind the fall board. Vifhen they are being elevated 4they pass through an opening cut in the horizontal shelf between the bottom of the panel P and the tops of the fall board F. This opening is.-'nor1nally closed by a door 29 which automatically rises and falls when the tracker bar is raised andlowered.

4 The mechanismy for operating the paper through the chain 30, the shaft 31, chain 32 and gears W'hen the tracker bar and its associated part-s are lowered from 'the position shown in Fig. 2 to the position shown in Fig. 3. the sprocket wheel at the upper end of the chain 32 moves near to, and slightly back of the sprocket 34 at. the other end of the chain, which sprocket 34 is on theshaft 31. In this position the chain32 is slack and atm'ning of the shaft 31 and. sprocket 34 "would be liable to displace it. To prevent thisl attach to a convenient place a spring 35. When tov the tracker bar is lowered this vspring rests in the teeth of the sprocket 34h51 its own tension and' prevents the sprocket and its shaft 31 from being turned. When the shaft 2O is turned to raise the tracker bar, the adjacent arm 19 engages a bent end of the spring 35 and pulls it away from the teeth of the sprocket 311', thus leaving that sprocket paper feed. This mechanism is shown in Fig. 6, but is omitted from the other figures for the sake of clearness.

What I claim is z- 1. The combination with the front panel and the fall board of a piano, yot a pivotally' supported tracker bar, and means by which the har may be moved from a position below the panel and behind the fall board to a position in :front of the panel and above the fall board. y

2. ln a piano, a front panel and a fall board, a tracker bar having an operative position in front of the panel and somewhat above the fall board, and means by which'the tracker bar may be moved to a position within-the piano-below the panel and behind the fall board.

3 The combination with a piano casing having a front panel and a fall board, of a tracker bar normally concealed within, the

casing below thapanel and behind the fall boa-rd, and means yfor moving the tracker bar to and supportingit at alposition exterior to the casing.

4. The combination with a piano-casing havinga front casing and a fall board, of a tracker bar normally concealed within the casing below the panel and behind the fall board, a pivotal supportfor the tracker bar, aniopening throughithe casing in front ofv the p'anel and normally closed by'a door, and means for moving the tracker bar on .its pivotal support so asto cause it to raise thedoor and pass through said opening to the exterior of the casing.

5. The combination with a piano casing having a front panel, a fall board and an opening between the lower part of the panel and the fall board, and a door adapted to close said opening, of a trackerbar and a pivotal support therefor located within the casing, ineansvior moving the tracker bar on its pivotal' support so that it will open ,the door and pass to the exterior of the casing, and means for moving a perforated sheet over the tracker bar when in its exterior position. l

6. The combination with a piano`casing having a front panel, a Jfall board, and a door normally closing an opening in the cas-` ing between the panel and the fall board, of a tracker bar located within the casing and below the door, a hand operated device located outside o" the casing, and connections from the hand operated device to the tracker bar ifor raising the latter through said opening.'

7. The combination with a piano casing having a front panel, a fall board, and a door normally closing an opening in the cas? ing between the panel and the fall board,

of a tracker bar within the casing and below raising the tracker bar through said opening and means for moving a perforated sheet over the tracker bar when in raised position,

9. The combination with a piano casing, oit' a tracker bar normally within the casing, means controlled from the exterior of the casing for moving thetracker bar through an opening in the casing to the exterior.

thereof, a driving mechanism for .moving` a perforated sheet over the tracker bar when said bar is in its exterior position, and means for locking the driving I nechanisrn` against operation when the tracker bar is in its interior position.

10. The combination witha tracker bar, devices for moving it from one position to another, and a driving mechanism for moving a perforated sheet over the tracker bar,

of locking devices for the driving mecha: i

nism, said locking devices losingy operated by the movement of the tracker bar.

1'1. rEhe combination with the piano easing,` and a fall board, of a tracker bar nory mally concealed within the casing and behind the fall board, and means for moving the tracker bar to and snpporting it at 'a position exterior to the casing.

Signed at Chicago, 'Illinois this 22` day` of May 1912.

CHARLES V. JAMESON. l/Vitnesses: WALTER H. REDIELD,

(l L. Rnnrmnn. 

